摘要
表型可塑性是植物与环境相互作用而表现出的一种适应能力,表现为积极的响应和消极的响应。可塑性不仅可以作为性状遗传,也可接受进化,但适应进化的前提条件是遗传变异和自然选择,同时受可塑性代价和限制条件所局限,这些问题可通过先进的生物手段逐渐找到答案,并得到解决。其次,植物可塑性响应还受到非生物因子的影响,如光照(耐荫性)、营养、水分以及温度等,特别在全球大气变化的影响下,植物的可塑性响应能否反映这种变化值得去关注。同时,国内的表型可塑性研究还需要进一步深入,特别是在大区域尺度上,更多的评价工作需要完善。
Phenotypic plasticity is an adaptive capacity expressed by plants as a result of interaction with environment to which plants responded either positively or negatively. The plasticity may be inherited and evolved as genetic traits. The premises of the adaptive evolution is genetic variation and natural selection, which is restricted by plastic costs and limits. However, the mechanism of the restrictions may be clear, and the restrictions may be eliminated by advanced biological means. Moreover, plant plasticity is influenced by abiotic factors, such as light, nutrient, water and temperature. Especially under the influence of global changes, it is noteworthy whether the plant phenotypic plasticity can reflect such changes. Meanwhile, study of phenotypic plasticity in our country should be further enhanced in future, especially assessment in plasticity in the great scale.
出处
《林业科学》
CAS
CSCD
北大核心
2008年第5期135-142,共8页
Scientia Silvae Sinicae
基金
国家自然科学基金面上项目(30371141)
三建委与国家林业局项目“三峡库区陆生动植物监测”(SX2001-012)
北京林业大学自选课题资助基金(06jj009)
关键词
表型可塑性
植物性状
非生物因子
phenotypic plasticity
plant traits
abiotic factors
